Mo 30 E over Big River
FairJefferson County, Missouri · S 26 T 42 N R 3 E · Structure no. 3788
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 606 ft
- 3 main spans
- Daily traffic
- 5,864
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 30 E over Big River is a steel continuous stringer/multi-beam or girder carrying Mo 30 E over Big River in Jefferson County, Missouri. It was built in 1988, so it is 37 years old, younger than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 5,864 vehicles a day, roughly 11% of them trucks, projected to reach 9,969 by 2044. The structure is 606 ft (184.7 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 30 E over Big River built?
It was built in 1988, making it 37 years old in 2025.
What condition is Mo 30 E over Big River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does Mo 30 E over Big River carry?
About 5,864 vehicles per day (2024 count), of which roughly 11% are trucks.
How long is Mo 30 E over Big River?
The structure is 606 ft (184.7 m) long with a longest span of 150 ft (45.7 m) and a deck 41 ft wide.
Who owns Mo 30 E over Big River?
It is owned by the State Highway Agency.